KR100735235B1 - Different Service Providing Method By Using PIP Function In T-DMB Terminal - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a user interface of a DMB receiving terminal device, and more particularly, to a service providing method using a PIP function for simultaneously providing a video service and a data service received through one ensemble through a PIP function in a terrestrial DMB receiving terminal device. It is about.

2. The technical problem to be solved by the invention

The present invention provides a PIP function that allows users to receive two or more services at the same time by presenting a plan that can be provided by providing a video service and a data service using a PIP function in a terrestrial DMB receiving terminal device. The purpose is to provide the service providing method used.

3. Summary of the Solution of the Invention

A service providing method using a PIP function in a terrestrial DMB terminal device, the method comprising: a first step of receiving a key for the PIP function while using a predetermined DMB service and displaying a list of services in an ensemble currently in service; A second step of selecting a predetermined item in the service list; A third step of checking whether the terrestrial DMB terminal device is currently performing a PIP function when the selected predetermined item is an “exchange” item by checking whether the predetermined item selected in the second step is an “exchange” item; A fourth step of switching between a service of a main screen of the PIP function and a service of an auxiliary screen if the PIP function is currently being performed in the third step; And a fifth step of checking whether the predetermined item selected in the second step is an “exchange” item and displaying the selected predetermined item on a PIP screen when the selected predetermined item is not an “exchange” item. .

4. Important uses of the invention

The present invention is used for terrestrial DMB system.

Terrestrial DMB, PIP, exchange

Description

Differentiated Service Providing Method By Using PIP Function In T-DMB Terminal}

1 is an exemplary diagram showing a structure for an ensemble used in a terrestrial DMB system.

2 is a configuration diagram of a video service providing apparatus for providing a video service in a general terrestrial DMB receiving terminal device.

3 is a configuration diagram of an embodiment of a general terrestrial DMB data broadcasting middleware decoder.

4 is an exemplary view illustrating a process of setting a PIP function by a service providing method using a PIP function in a terrestrial DMB terminal device according to the present invention;

5 is an exemplary view showing a "exchange" process of the PIP function by the service providing method using the PIP function in the terrestrial DMB terminal device according to the present invention.

6 is an exemplary diagram illustrating a PIP termination process among PIP functions by a service providing method using a PIP function in a terrestrial DMB terminal device according to the present invention;

7 is a flowchart illustrating a method for providing heterogeneous services using a PIP function in a terrestrial DMB terminal device according to the present invention.

The present invention relates to a user interface of a DMB receiving terminal device, and more particularly, to a service providing method using a PIP function for simultaneously providing a video service and a data service received through one ensemble through a PIP function in a terrestrial DMB receiving terminal device. It is about.

Terrestrial Digital Multimedia Broadcasting (DMB) is a multimedia broadcasting service including video based on the Digital Audio Broadcasting (DAB) (Eureka-147) system, a European digital radio broadcasting standard that provides CD-quality audio and data services simultaneously. Is the world's first domestic system standard to provide.

The advantage of such terrestrial DMB broadcasting over general digital broadcasting such as Advanced Television Systems Committee (ATSC) or Digital Video Broadcasting (DVB) is that it can listen to the broadcast on the go. In other words, if the DMB user has a DMB receiving terminal apparatus, the DMB user can listen to the broadcast as much as possible while moving.

Another feature of terrestrial DMB broadcasting is that broadcasting services are not limited to video services, and audio and data services can also be received through broadcasting. Therefore, more channels and services are available through terrestrial DMB than fixed terrestrial digital broadcasting.

The terrestrial DMB broadcast signal is composed of ensemble units, and one ensemble consists of several services. Each service includes service components.

That is, one ensemble becomes a basic element constituting the terrestrial DMB broadcast signal, and the user can listen to a specific service by selecting a service in the ensemble. Usually, one ensemble may have a plurality of video services, audio services, and data services.

1 is an exemplary diagram illustrating a structure of an ensemble used in a terrestrial DMB system.

Referring to FIG. 1, an ensemble used in a terrestrial DMB system includes a plurality of services and service components configuring each service. The structure of this ensemble follows the DAB standard proposed by Eureka-147. Thus, as shown, the ensemble 101 labeled "DAB ENSEMBLE ONE" is comprised of services called "ALPHA 1 RADIO" 102, "BETA RADIO" 103, and "ALPHA 2 RADIO" 104. It can be seen that each service is composed of a plurality of service components 105 to 110 again.

The service in this ensemble is included in a part of one ensemble frame called the main service channel (MSC) 114 to 118, and the configuration information of the main service channel is a fast information channel (FIC). The multiplex configuration information (MCI) 111 and the service information (SI) 112 may be found.

In fact, when the receiving terminal selects and tunes a specific ensemble, it does not immediately extract and display a service included in the main service channel of the ensemble, but first displays the multiplex configuration information 111 and the service information 112 of the fast information channel. After analysis, we can show the services of the main service channel.

Looking at the currently proposed Korean terrestrial DMB system, the number of ensemble allocated to the Korean terrestrial DMB is six, each ensemble includes a number of services.

<Table 1a> and <Table 1b> summarize the ensemble information and service information allocated to Korean terrestrial DMB. As shown in Tables 1a and 1b, the Korean terrestrial DMB consists of seven video channels, 13 audio channels, and 7 data channels.

On the other hand, PIP (Picture In Picture) related technology is mainly provided by digital television, and when simultaneously watching two different broadcasting channels, it is divided into a main screen and an auxiliary screen to simultaneously display different broadcasts ( display) function. Typically, the PIP feature requires two tuners and two video decoders. Accordingly, the function is implemented by displaying the video signals decoded by the respective tuner and the decoder on the main picture and the sub picture.

When the PIP function is applied to a terrestrial DMB receiving terminal device, two terrestrial DMB tuners and two video decoders are similarly required.

However, in the case of using two terrestrial DMB tuners and two video decoders, the heat generated from the respective elements will be a big burden for the terrestrial DMB receiving terminal device using the RF module. In addition, the increase in volume in the process of embedding each module is inevitable, which may damage the advantages of the DMB receiving terminal device as a portable terminal.

The present invention has been proposed to solve the above problems, by presenting a method that can be provided by providing a video service and a data service using the PIP function in a terrestrial DMB receiving terminal device at the same time to users An object of the present invention is to provide a heterogeneous service providing method using a PIP function that allows two or more services to be provided.

In order to achieve the above object, the present invention provides a service providing method using a PIP function in a terrestrial DMB terminal device, wherein a list of services in an ensemble currently in service is received by receiving a key for the PIP function while using a predetermined DMB service. Displaying the first step; A second step of selecting a predetermined item in the service list; A third step of checking whether the terrestrial DMB terminal device is currently performing a PIP function when the selected predetermined item is an “exchange” item by checking whether the predetermined item selected in the second step is an “exchange” item; A fourth step of switching between a service of a main screen of the PIP function and a service of an auxiliary screen if the PIP function is currently being performed in the third step; And a fifth step of checking whether the predetermined item selected in the second step is an “exchange” item and displaying the selected predetermined item on a PIP screen when the selected predetermined item is not an “exchange” item. .

In addition, the present invention, in the service providing method using the PIP function in the terrestrial DMB terminal device, the ensemble currently being serviced according to whether the PIP function is currently performed by receiving a key for the PIP function while using a predetermined DMB service. Displaying a list of services in the first step; A second step of selecting a predetermined item in the service list; A third step of checking whether the predetermined item selected in the second step is an “exchange” item and switching the service of the main screen and the sub screen of the PIP function when the selected predetermined item is an “exchange” item; And a fourth step of checking whether the predetermined item selected in the second step is an “exchange” item and displaying the selected predetermined item on a PIP screen when the selected predetermined item is not an “exchange” item. .

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

The general TV signal is based on one channel, that is, one broadcasting station carrying one service on one frequency. Therefore, two tuners are required to simultaneously view two channels or to receive different services (eg, data and video services). In addition, even when decoding is performed based on signals received through two tuners, two decoders must be retained because decoding must be performed using two decoders to simultaneously decode two signals.

However, as discussed above, DAB technology, which is the basis of terrestrial DMB, transmits an ensemble that accommodates multiple services in one channel, so that multiple services can be provided through one frequency. have.

1 is an exemplary diagram illustrating a structure of an ensemble used in a terrestrial DMB system.

Referring to FIG. 1, an ensemble used in a terrestrial DMB system includes a plurality of services and service components configuring each service. The structure of this ensemble follows the DAB standard proposed by Eureka-147. Thus, as shown, the ensemble 101 labeled "DAB ENSEMBLE ONE" is comprised of services called "ALPHA 1 RADIO" 102, "BETA RADIO" 103, and "ALPHA 2 RADIO" 104. It can be seen that each service is composed of a plurality of service components 105 to 110 again.

The service in this ensemble is included in a part of one ensemble frame called the main service channel (MSC) 114 to 118, and the configuration information of the main service channel is a fast information channel (FIC). The multiplex configuration information (MCI) 111 and the service information (SI) 112 may be found.

In fact, when the receiving terminal selects and tunes a specific ensemble, it does not immediately extract and display a service included in the main service channel of the ensemble, but first displays the multiplex configuration information 111 and the service information 112 of the fast information channel. After analysis, we can show the services of the main service channel.

2 is a configuration diagram of a video service providing apparatus for providing a video service in a general terrestrial DMB receiving terminal device.

Referring to FIG. 2, a video service providing apparatus for providing a video service in a general terrestrial DMB receiving terminal apparatus receives an MPEG 2 TS and demultiplexes the MPEG 2 TS (DE-MUX) 21. MPEG4 SL Depacketizer 22 which depacketizes the demultiplexed MPEG4 SL packet through MPEG2 TS Demultiplexer (DE-MUX) 21 into MPEG data and information data, and delivers it. MPEG decoder 24 for receiving and decoding MPEG data from SL depacketizer 22 and BIFS & data processor 25 for receiving and processing information data from MPEG4 SL depacketizer 22 for processing it. ), An audio DAC (DIGITAL ANALOG CONVERTER) 26 which receives audio data from the MPEG decoder 24 and the BIFS & data processing unit 25 and outputs it as an analog signal, the MPEG decoder 24 and the BIFS & data processing unit 25. Receive video data from ah An audio multiplex output unit 28 and a video DAC that receive audio signals from a digital analog converter (27), an audio DAC (26) and a music CAM, which are output as log signals, and multiplex them to output them. The display unit 29 receives the analog video signal from the output unit 27 and outputs the analog video signal.

The video service providing apparatus for providing a video service in the general terrestrial DMB receiving terminal device shown in FIG. 2 is combined with the video output of the terrestrial DMB data broadcasting middleware decoder shown in FIG. Make it available. In this case, the PIP function is used to simultaneously provide a video service and a data service.

3 is a configuration diagram of a general terrestrial DMB data broadcasting middleware decoder.

Referring to FIG. 3, the terrestrial DMB data broadcasting middleware decoder receives a terrestrial DMB stream, extracts data for a data service, transfers information on the corresponding data to the manager 35, and according to the format of the extracted data. Data manager 31 which transmits to different decoders, data for data service output the decoded data through each decoder 32, 33, 34 and each decoder 32, 33, 34 according to the type. Receive information about data for data service inputted from the output units 36, 37, 38, 39 and data manager 35 according to the respective data for the respective decoders 32, 33, A manager 35 for managing the operation of the terminal 34).

Here, the data for data service includes MOT (Multimedia Object Transfer) data, TDC (Transparent Data Channel) data, and DLS (Dynamic Label Service) data according to the type, and MOT decoder 33 and TDC decoder ( 34) and a DLS decoder (32).

Each of the output units 36, 37, 38, and 39 serves as a browser according to a specific data service. That is, when the data service is a broadcast web site (BWS) service, the data service operates as an output unit as a web browser, and when the data service is an electronic program guide (EPG) service, the output unit operates as an EPG display window. In addition, when the data service is a TPEG (Transport Protocol Expert Group), the output unit operates as a corresponding traffic information display window.

Referring to FIG. 2 and FIG. 3, video and data services are output, respectively. In general, terrestrial DMB providers provide one video service, a plurality of audio services, and a plurality of data services.

In particular, these data services include TPEG, BWS, and DLS. Since these services perform data decoding in the memory management unit (MMU) 23 of FIG. 2 separately from the video decoder, two services may be simultaneously provided through the PIP function of the video decoding apparatus implemented as shown in FIG. 2. It becomes possible.

In the embodiment of the present invention, the execution of the PIP function implements a Mini EPG function that provides service information to be additionally provided in the main program currently being provided with the service, and informs the availability of the services in the same ensemble. The service is provided through the PIP mode by the user's choice.

Basically, these functions perform decoding operation on the data service included in the ensemble in terrestrial DMB data broadcasting middleware simultaneously using the decoder block structure of FIG. 3 to deliver the decoded data to each application and for the service selected by the user. This is made possible by the manager 25 activating.

Audio is also designed to switch between primary and secondary services. In this case, the audio outputs audio information of the main service, and the audio information of the auxiliary service can be selectively output by the user's selection.

4 is an exemplary view illustrating a process of setting a PIP function by a service providing method using a PIP function in a terrestrial DMB terminal device according to the present invention.

FIG. 4 (a) illustrates a case where a data service such as TPEG is used as a main service, and in the state of FIG. 4 (a), a predetermined key for outputting mini EPG information for setting a PIP function by a user. If is inputted as shown in Figure 4 (b) outputs a list of services that can be output in the same ensemble in the form of mini EPG.

In the menu screen of FIG. 4 (b), whether the PIP is supported or not is set to “N0” for the FM service. In this case, the service whose PIP support is set to "NO" when moving the focus for selection is implemented so that it is not selected. This excludes the selection of services that do not support the PIP function.

If the user selects a service to be simultaneously output in the corresponding mini EPG as shown in FIG. 4 (c) (in the embodiment of the present invention), the selected service is shown in PIP form as shown in FIG. 4 (d). Is displayed.

In this case, the mini EPG may be configured differently from the embodiment of the present invention according to its implementation, but the displayed information is a list of all services of the ensemble including the service currently being used and the corresponding service has a PIP function. It should include information on whether it supports and whether it is a currently running service.

That is, referring to the mini EPG shown in FIGS. 4B and 4C, the mini EPG shows a list of all services in the ensemble including the service currently being used. Also, each service item allows the user to see whether or not the PIP function is supported, and does not indicate whether the service item is currently supported. Then, create an execution item in the form of a check box so that the current service can be displayed. When the initial PIP service is inactive, the check box indicates the main service.

5 is an exemplary view of a process of "exchange" of the PIP function by the service providing method using the PIP function in the terrestrial DMB terminal device according to the present invention.

FIG. 5 (a) illustrates a PIP implementation screen when a data service such as TPEG is used as a main service and a video service is used as an auxiliary service, and the user sets the PIP function in the state of FIG. 5 (a). In order to input a predetermined key for outputting mini EPG information, a list of services that can be output in the same ensemble is output in the form of mini EPG as shown in FIG. In this case, the list of printable services includes an "exchange" item. The "exchange" item is a menu for switching between primary and secondary services. Here, the "exchange" menu may be implemented to be additionally displayed only when the PIP function is in operation, or may be implemented to display a corresponding item in a general mini EPG as shown in FIG. 4 (b).

If the user selects the "exchange" menu in the corresponding mini EPG as shown in FIG.

6 is an exemplary diagram illustrating a PIP termination process among PIP functions by a service providing method using a PIP function in a terrestrial DMB terminal device according to the present invention.

FIG. 6 (a) illustrates a PIP implementation screen when a data service such as TPEG is used as an auxiliary service and a video service is used as a main service, and the user sets the PIP function in the state of FIG. 6 (a). In order to input a predetermined key for outputting mini EPG information, a list of services that can be output in the same ensemble is output in the form of mini EPG as shown in FIG. In this case, the list of printable services includes an "exchange" item. The "exchange" item is a menu for switching between primary and secondary services. Here, the "exchange" menu may be implemented to be additionally displayed only when the PIP function is in operation, or may be implemented to display a corresponding item in a general mini EPG as shown in FIG. 4 (b).

6 (c), when the user selects a service running as the current main service in the mini EPG, as shown in FIG. 6 (d), the PIP function ends and only the main service is displayed.

7 is a flowchart illustrating a method for providing heterogeneous services using a PIP function in a terrestrial DMB terminal device according to the present invention.

Referring to FIG. 7, in the method for providing heterogeneous services using the PIP function in the terrestrial DMB terminal device according to the present invention, when a key for a PIP function is input in a state in which a predetermined DMB service is used (701), the PIP is performed (702). It checks whether the function is activated (703) and displays a list of all services of the ensemble including the currently used DMB service (704, 705). If the PIP function is activated, the list of all services of the ensemble including the currently used DMB service is displayed on the currently used DMB service screen, but in this case, the "exchange" item, that is, the "exchange" menu is additionally displayed. (704). On the other hand, when the PIP function is deactivated, the list of all services of the ensemble including the currently used DMB service is displayed on the currently used DMB service screen. In this case, the "exchange" item, that is, the "exchange" menu is not displayed. (705). The processes of 703 to 705 are then optionally applied with the processes of 708 to 709. That is, when the "exchange" menu is displayed regardless of whether the PIP function is activated or not, the processes of steps 703 to 705 are performed by the process of step 702, and the list of all services of the ensemble including the currently used DMB service is displayed. You can abbreviate it to one of the steps shown above. In addition, when the "exchange" menu is selectively displayed through the steps 703 to 705, steps 708 and 709 are omitted and the process proceeds directly to step 710.

A predetermined item is selected from the displayed service list (706).

In this case, it is checked whether the selection item is an "exchange" item (707), and if it is an "exchange" item, it is checked whether the current PIP function is operating (708). As a result of the check, if the current PIP function is not in operation, an exchange error message is displayed (709) and the process proceeds to step 706. On the other hand, if the PIP function is currently operating as a result of the check, the service of the main screen and the sub-screen of the PIP function is switched (710).

On the other hand, if the selection item is not an "exchange" item (707), it is determined whether the selected item is a service currently in use (711). If the selected item is not a service currently being used, the PIP function of displaying the selected item on the sub screen is operated (713). On the other hand, if the selected item is a service currently in use, the PIP function is deactivated and only the selected item is displayed (712).

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited by the drawings.

As described above, the present invention implements an interface structure capable of displaying a plurality of services provided in one ensemble by utilizing a PIP function in a terrestrial DMB receiving terminal device so as to provide a convenient and fast service to a user. It is effective.

Claims (6)

In the heterogeneous service providing method using the PIP function in the terrestrial DMB terminal device, A first step of receiving a key for the PIP function while using a predetermined DMB service and displaying a list of services in an ensemble currently in service; A second step of selecting a predetermined item in the service list; A third step of checking whether the terrestrial DMB terminal device is currently performing a PIP function when the selected predetermined item is an “exchange” item by checking whether the predetermined item selected in the second step is an “exchange” item; A fourth step of switching between a service of a main screen of the PIP function and a service of an auxiliary screen if the PIP function is currently being performed in the third step; And A terrestrial wave including a fifth step of checking whether the predetermined item selected in the second step is an “exchange” item and displaying the selected predetermined item on a PIP screen when the selected predetermined item is not an “exchange” item; A heterogeneous service providing method using a PIP function in a DMB terminal device. The method of claim 1, If the PIP function is not currently being performed in the third step, providing a heterogeneous service using the PIP function in the terrestrial DMB terminal device further including a sixth step of indicating that the error of the "exchange" function and proceeding to the second step. Way. The method according to claim 1 or 2, The fifth step, A seventh step of checking whether the predetermined item selected in the second step is an “exchange” item, and if the selected predetermined item is not an “exchange” item, checking whether the selected predetermined item is a service currently in use; An eighth step of terminating a PIP function and displaying the selected predetermined item when the selected predetermined item is a service currently being used as a result of the checking of the seventh step; And As a result of the seventh step, if the selected predetermined item is not a service currently being used, the terrestrial DMB terminal device including the ninth step of displaying the selected item as a service of the auxiliary screen on the PIP screen includes the PIP function. How to provide heterogeneous services. In the heterogeneous service providing method using the PIP function in the terrestrial DMB terminal device, A first step of receiving a key for the PIP function while using a predetermined DMB service and displaying a list of services in an ensemble currently being serviced according to whether a PIP function is currently being performed; A second step of selecting a predetermined item in the service list; A third step of checking whether the predetermined item selected in the second step is an “exchange” item and switching the service of the main screen and the sub screen of the PIP function when the selected predetermined item is an “exchange” item; And A terrestrial wave including a fourth step of checking whether the predetermined item selected in the second step is an “exchange” item and displaying the selected predetermined item on a PIP screen when the selected predetermined item is not an “exchange” item; A heterogeneous service providing method using a PIP function in a DMB terminal device. The method of claim 4, wherein In the first step, If the PIP function is currently being performed, the service list including the item of the "exchange" function is displayed. If the PIP function is not currently being performed, the service list not including the item of the "exchange" function is displayed. A heterogeneous service providing method using a PIP function in a terrestrial DMB terminal device. The method according to claim 4 or 5, The fourth step, A fifth step of checking whether the predetermined item selected in the second step is an “exchange” item, and if the selected predetermined item is not an “exchange” item, checking whether the selected predetermined item is a service currently in use; A sixth step of terminating a PIP function and displaying the selected predetermined item when the selected predetermined item is a service currently being used as a result of the checking of the fifth step; And As a result of the checking of the fifth step, if the selected predetermined item is not a service currently being used, the terrestrial DMB terminal device including the seventh step of displaying the selected item as a service of the auxiliary screen on the PIP screen includes the PIP function. How to provide heterogeneous services.

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